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feat(drtm): take DRTM components measurements before DLME launch

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Taken measurement of various DRTM components in the Event Log
buffer to pass it to DLME.

Change-Id: Ic56620161f42596d22bf40d5c83c041cbce0b618
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
This commit is contained in:
Manish V Badarkhe 2022-06-21 18:11:53 +01:00
parent 2b13a98599
commit 2090e55283
1 changed files with 22 additions and 0 deletions
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22
services/std_svc/drtm/drtm_main.c
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@ -19,6 +19,7 @@
#include <common/runtime_svc.h>
#include <drivers/auth/crypto_mod.h>
#include "drtm_main.h"
#include "drtm_measurements.h"
#include "drtm_remediation.h"
#include <lib/psci/psci_lib.h>
#include <lib/xlat_tables/xlat_tables_v2.h>
@ -392,6 +393,27 @@ static uint64_t drtm_dynamic_launch(uint64_t x1, void *handle)
SMC_RET1(handle, ret);
}
/*
* The DMA protection is now engaged. Note that any failure mode that
* returns an error to the DRTM-launch caller must now disengage DMA
* protections before returning to the caller.
*/
ret = drtm_take_measurements(&args);
if (ret != SUCCESS) {
goto err_undo_dma_prot;
}
SMC_RET1(handle, ret);
err_undo_dma_prot:
dma_prot_ret = drtm_dma_prot_disengage();
if (dma_prot_ret != SUCCESS) {
ERROR("%s(): drtm_dma_prot_disengage() failed unexpectedly"
" rc=%d\n", __func__, ret);
panic();
}
SMC_RET1(handle, ret);
}